Nick Mathewson Nick Mathewson is an anonymity researcher, software engineer, and privacy hacker. His research at MIT concentrated in verifying privacy properties in Java bytecodes; he received an M.Eng in 2000. Since 2002, he has worked on anonymity, first as lead developer on Mixminion; and as a core developer on the Tor Project since 2002. His research focuses on attacking and strengthening anonymity networks. He lives in Cambridge, Massachusetts.